FrostCal

When to Plant Broccoli in Arizona

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 23 – Jan 30. Across the state, the outdoor planting window starts as early as Dec 14 in Bullhead City and as late as May 14 in Flagstaff. For a fall crop, plant around Oct 3 – Oct 10. 3 cities in Arizona are essentially frost-free and can plant on a year-round schedule.

Method Start indoors, then transplant
Days to maturity 55–80 days

Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Broccoli Planting Dates by City

CityStart indoorsTransplantFall planting
PhoenixNov 17 – Dec 1Dec 15 – Dec 22Nov 1 – Nov 8
TucsonDec 2 – Dec 16Dec 30 – Jan 6Oct 15 – Oct 22
MesaDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
ChandlerDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
GilbertDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
GlendaleDec 2 – Dec 16Dec 30 – Jan 6Oct 13 – Oct 20
ScottsdaleDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
PeoriaDec 2 – Dec 16Dec 30 – Jan 6Oct 13 – Oct 20
TempeDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
Tempe JunctionDec 26 – Jan 9Jan 23 – Jan 30Oct 3 – Oct 10
SurpriseDec 2 – Dec 16Dec 30 – Jan 6Oct 13 – Oct 20
YumaNov 20 – Dec 4Dec 18 – Dec 25Oct 26 – Nov 2
San Tan ValleyDec 14 – Dec 28Jan 11 – Jan 18Oct 9 – Oct 16
AvondaleNov 19 – Dec 3Dec 17 – Dec 24Oct 22 – Oct 29
GoodyearNov 19 – Dec 3Dec 17 – Dec 24Oct 22 – Oct 29
FlagstaffApr 16 – Apr 30May 14 – May 21Jul 27 – Aug 3
Casas AdobesJan 8 – Jan 22Feb 5 – Feb 12Oct 2 – Oct 9
Lake Havasu CityNov 17 – Dec 1Dec 15 – Dec 22Oct 27 – Nov 3
Casa GrandeDec 18 – Jan 1Jan 15 – Jan 22Oct 4 – Oct 11
BuckeyeNov 19 – Dec 3Dec 17 – Dec 24Oct 22 – Oct 29
Catalina FoothillsJan 2 – Jan 16Jan 30 – Feb 6Sep 25 – Oct 2
MaricopaJan 5 – Jan 19Feb 2 – Feb 9Sep 22 – Sep 29
Oro ValleyFeb 12 – Feb 26Mar 12 – Mar 19Sep 9 – Sep 16
Sierra VistaFeb 15 – Mar 1Mar 15 – Mar 22Sep 7 – Sep 14
Prescott ValleyMar 2 – Mar 16Mar 30 – Apr 6Aug 25 – Sep 1
PrescottMar 12 – Mar 26Apr 9 – Apr 16Aug 18 – Aug 25
MaranaJan 5 – Jan 19Feb 2 – Feb 9Oct 4 – Oct 11
Bullhead CityNov 16 – Nov 30Dec 14 – Dec 21Oct 21 – Oct 28
Apache JunctionDec 24 – Jan 7Jan 21 – Jan 28Oct 8 – Oct 15
Sun CityDec 2 – Dec 16Dec 30 – Jan 6Oct 13 – Oct 20

Showing the 30 most populous of 72 Arizona cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Arizona cities.

Frequently Asked Questions

When should I plant broccoli in Arizona?

In a typical Arizona location, start seeds indoors Dec 26 – Jan 9, then transplant outdoors Jan 23 – Jan 30. Across the state, the outdoor planting window starts as early as Dec 14 in Bullhead City and as late as May 14 in Flagstaff. For a fall crop, plant around Oct 3 – Oct 10. 3 cities in Arizona are essentially frost-free and can plant on a year-round schedule.

When is the last frost in Arizona?

The average last spring frost in Arizona ranges from January 4 in Bullhead City to June 4 in Flagstaff, based on NOAA 1991–2020 climate normals.

How long do broccoli take to grow?

Broccoli typically take 55–80 days from planting to harvest. Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Other Crops in Arizona

When to plant broccoli in other states

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